To determine the appropriate amount of protein Ian needs daily based on his body weight, we utilize a standard guideline that recommends about 0.36 grams of protein per pound of body weight.
Let's break this down step-by-step:
1. Determine Ian's weight in pounds:
Ian weighs 218 pounds.
2. Use the standard protein recommendation:
The standard recommendation for protein intake is 0.36 grams per pound of body weight.
3. Calculate the daily protein requirement:
- We multiply Ian's weight by the recommended protein intake per pound:
[tex]\( 218 \text{ pounds} \times 0.36 \text{ grams per pound} \)[/tex]
Performing this multiplication gives:
[tex]\( 218 \times 0.36 = 78.48 \)[/tex] grams
So, Ian needs approximately 78.48 grams of protein daily.
4. Match the closest value to the given choices:
The provided choices are:
- 119 grams
- 99 grams
- 174 grams
- 79 grams
- 60 grams
Comparing these values, the closest choice to 78.48 grams is:
- 79 grams
Thus, the approximate amount of protein Ian needs daily based on his weight is best represented by choice:
d. 79 grams
